The Panasonic Lumix DMC-GF1 is 10.5 mm narrower, 20 mm shorter, 16.7 mm thinner and 110 g lighter than the Olympus E-420.
| Olympus E-420 | Panasonic Lumix DMC-GF1 | |
|---|---|---|
| Size (W × H × D) | 129.5 × 91 × 53 mm | 119 × 71 × 36.3 mm |
| Weight | 445 g | 335 g |
| Lens | Four Thirds | Micro Four Thirds |
| Sensor | Four Thirds | Four Thirds |
| Announced | 2008 | 2009 |